The AD56SS 4X9.5MM Aluminum and Stainless Steel Dome Rivet, a dependable fastening solution with a diameter of 5/32". Designed for a secure grip in materials ranging from 3.2-4.8mm thick, this rivet offers a versatile application. Its flange type ensures stability, while the plain finish adds a sleek touch. With a hole size of .16 - .164 inches and a grip range of .126 - .187 inches, it accommodates various installation requirements with ease. Rest assured of its environmental compliance with RoHS standards, making it a conscientious choice for your projects.